I've gone ahead and compiled it on my PlayStation 2 Linux box (mips binary) - and on my laptop under Cygwin (x86 binary). I've never used GNU FORTRAN before - very interesting. I might have to peep the source code a bit - last time I used FORTRAN was in 1983 in college.

In the meantime,

$ ./advf4-11.exePAUSE INIT DONE statement executedTo resume execution, type go. Other input will terminate the job.goExecution resumes after PAUSE.WELCOME TO ADVENTURE!! WOULD YOU LIKE INSTRUCTIONS?

yesSOMEWHERE NEARBY IS COLOSSAL CAVE, WHERE OTHERS HAVE FOUNDFORTUNES IN TREASURE AND GOLD, THOUGH IT IS RUMOREDTHAT SOME WHO ENTER ARE NEVER SEEN AGAIN. MAGIC IS SAIDTO WORK IN THE CAVE. I WILL BE YOUR EYES AND HANDS. DIRECTME WITH COMMANDS OF 1 OR 2 WORDS.(ERRORS, SUGGESTIONS, COMPLAINTS TO CROWTHER)(IF STUCK TYPE HELP FOR SOME HINTS)

YOU ARE STANDING AT THE END OF A ROAD BEFORE A SMALL BRICKBUILDING . AROUND YOU IS A FOREST. A SMALLSTREAM FLOWS OUT OF THE BUILDING AND DOWN A GULLY.

go eastYOU ARE INSIDE A BUILDING, A WELL HOUSE FOR A LARGE SPRING.THERE ARE SOME KEYS ON THE GROUND HERE.THERE IS A SHINY BRASS LAMP NEARBY.THERE IS FOOD HERE.THERE IS A BOTTLE OF WATER HERE.